Advances in isolating, controlling and entangling quantum systems are transforming what
was once a curious feature of quantum mechanics into a vehicle for disruptive scientific and …

Entanglement entropy plays a variety of roles in quantum field theory, including the
connections between quantum states and gravitation through the holographic principle. This …

A bstract We consider entanglement entropy in quantum field theories with a gravity dual. In
the gravity description, the leading order contribution comes from the area of a minimal …

We provide a derivation of holographic entanglement entropy for spherical entangling
surfaces. Our construction relies on conformally map** the boundary CFT to a hyperbolic …

In this paper, we first introduce the general methods to calculate the entanglement entropy
for free fields, within the Euclidean and the real-time formalisms. Then, we describe the …

In this paper, we review recent progress on the holographic understanding of the
entanglement entropy in the anti-de Sitter space/conformal field theory (AdS/CFT) …

A bstract Relative entropy between two states in the same Hilbert space is a fundamental
statistical measure of the distance between these states. Relative entropy is always positive …

Abstract The Ryu-Takayanagi (RT) formula relates the entanglement entropy of a region in a
holographic theory to the area of a corresponding bulk minimal surface. Using the max flow …

The entanglement entropy is a fundamental quantity, which characterizes the correlations
between sub-systems in a larger quantum-mechanical system. For two sub-systems …

A bstract We develop a new setting in the framework of braneworld holography to describe a
pair of coupled and entangled uniformly accelerated universes. The model consists of two …